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Topic: Ovarian hyperstimulation syndrome

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	Ovarian hyperstimulation syndrome - Wikipedia, the free encyclopedia
		Ovarian hyperstimulation syndrome (OHSS) is a complication from some forms of fertility medication.
		OHSS is characterized by the presence of multiple luteinized cysts within the ovaries leading to ovarian enlargement and secondary complications.
		Thus, while the patient accumulates fluid in the third space, primarily in the form of ascites, she actually becomes hypovolemic and is at risk for respiratory, circulatory, and renal problems.
	en.wikipedia.org /wiki/Ovarian_hyperstimulation_syndrome (478 words)

	eMedicine - Ovarian Cysts : Article Excerpt by: C William Helm, MB, BCh
		ovarian tumors, cystadenocarcinoma, gestational trophoblastic neoplasia, hydatidiform mole, choriocarcinoma, polycystic ovary syndrome, polycystic ovarian syndrome, PCOS, ovarian hyperstimulation syndrome, epithelial ovarian cystadenocarcinomas, ovulation induction with gonadotropins, ovulation induction with clomiphene citrate, ovulation induction with letrozole
		The finding of an ovarian cyst causes considerable anxiety for women because of the fear of malignancy, but the vast majority of ovarian cysts are benign.
		Ovarian cysts arising in the normal process of ovulation are called functional cysts and are always benign.
	www.emedicine.com /med/byname/ovarian-cysts.htm (660 words)

	Scientific Frontline / Mayo Clinic Researchers Recommend Embryo Transfer Delay for Women at Risk of Ovarian ... (Site not responding. Last check: 2007-10-18)
		Ovarian hyperstimulation syndrome occurs in approximately 5 percent of women treated with medications to prompt ovulation, the first step in the in vitro fertilization process.
		They found 188 patients at risk for ovarian hyperstimulation syndrome, represented by high estradiol (estrogenic hormone) levels and the development of a large number of follicles in the ovaries.
		Though women can develop an early form of this syndrome before pregnancy is achieved through in vitro fertilization like the women in this study, other women experience ovarian hyperstimulation syndrome after embryo transfer and subsequent pregnancy, and the pregnancy hormone exacerbates hyperstimulation.
	www.sflorg.com /sciencenews/scn102406_02.html (592 words)

	Ovarian Hyperstimulation Syndrome (Site not responding. Last check: 2007-10-18)
		This complication of ovulation induction is characterized by bilateral ovarian enlargement, ascites, intravascular volume depletion, weight gain, and hypotension.
		Milder forms of this syndrome occur in 2% to 25% of cases of ovulation induction using gonadotropins.
		If it appears that a patient is at risk for this syndrome, the ovulation induction regimen may be canceled.
	uuhsc.utah.edu /obgyn/rei/ISohss.html (116 words)

	Bioline International Official Site (site up-dated regularly)
		Ovarian hyperstimulation syndrome (OHSS) is a potentially fatal iatrogenic complication of gonadotrophin administration used in IVF procedures (1) its incidence ranges from 0.5 to 10 % in all ovarian stimulation treatment cycles and up to 20% in high-risk cases (2).
		The factors leading to this syndrome have not been explained, it seems that there is release of vasoactive substances secreted by the ovaries under HCG stimulation, playing a key role in triggering this syndrome.
		Ovarian hyperstimulation syndrome was diagnosed according to the classification of Golan et al 1989, including it as early and late onset moderate and severe OHSS (11).
	www.bioline.org.br /request?mf05013 (1850 words)

	[No title]
		Ovarian Enlargement: Mild to moderate uncomplicated ovarian enlargement which may be accompanied by abdominal distention and/or abdominal pain occurs in approximately 20% of those treated with urofollitropin and hCG, and generally regresses without treatment within two or three weeks.
		Ovarian Hyperstimulation Syndrome (OHSS): OHSS is a medical event distinct from uncomplicated ovarian enlargement.
		The combination of both ultrasound and serum estradiol measurement are useful for monitoring the development of follicles, for timing of the ovulatory trigger, as well as for detecting ovarian enlargement and minimizing the risk of the Ovarian Hyperstimulation Syndrome and multiple gestation.
	www.best-meds.com /druginfo/gonal_warnings.htm (1038 words)

	ivf-infertility.com \| Polycystic Ovarian Syndrome (PCOS)
		The condition, polycystic ovarian syndrome, known as PCOS, is the commonest cause of ovulation disorders in women of reproductive age and is a familial condition.
		Polycystic ovarian syndrome is frequently associated with weight gain, excessive hair growth in the face and body, irregular and infrequent periods or absent periods, infrequent or absent ovulation, miscarriage and infertility.
		Polycystic ovarian syndrome (PCOS) accounts for 90% of women with oligomenorrhoea (infrequent periods) and 30% of women with amenorrhoea (absent of periods) and over 70% of women with anovulation.
	www.ivf-infertility.com /infertility/pcos.php (982 words)

	Ovarian hyperstimulation syndrome
		Ursula Brigitte Kaiser, M.D. The Pathogenesis of the Ovarian Hyperstimulation Syndrome
		Ursula Brigitte Kaiser, M.D. The ovarian hyperstimulation syndrome is an iatrogenic complication
		of the ovarian hyperstimulation syndrome is related to the degree
	www.medical-journals.com /r03218b.htm (823 words)

	MedlinePlus: Delayed Embryo Transfer Suggested for At-Risk Women (Site not responding. Last check: 2007-10-18)
		They found that this method is effective in women at risk for potentially life-threatening ovarian hyperstimulation syndrome, in which the ovaries become highly sensitive to hormonal changes and start to enlarge -- sometimes to the size of an orange or grapefruit.
		In women at risk for this syndrome, embryo transfer into the uterus should be delayed after the woman's eggs have been fertilized in the laboratory.
		All the embryos should be frozen until the woman's risk for ovarian hyperstimulation syndrome subsides naturally with time, the Mayo researchers said.
	www.nlm.nih.gov /medlineplus/news/fullstory_40519.html (329 words)

	Family Beginnings - Features of Ovarian Hyper-Stimulation Syndrome (OHSS)
		Ovarian enlargement, ascites, pleural/pericardial effusions, electrolyte imbalances, coagulopathies occur and may be life-threatening.
		Grade C OHSS is complicated by respiratory distress syndrome, renal shutdown, or venous thrombosis.
		Abramov Y, Schenker JG, Lewin A. Plasma inflammatory cytokines correlate to the ovarian hyperstimulation syndrome.
	www.ivf-indiana.com /education/ohss.html (697 words)

	Ovarian hyperstimulation syndrome
		Ovarian hyperstimulation syndrome is the overstimulation of the ovaries that may occur as a result of assisted reproductive technology (ART).
		Mild hyperstimulation causes enlargement of the ovaries and discomfort and fluid buildup in the abdomen.
		Severe hyperstimulation can cause life-threatening fluid buildup around the heart and lungs and in the abdomen, and a drop in blood fluid content.
	www.webmd.com /hw/health_guide_atoz/sto167456.asp?navbar=hw201764 (230 words)

	OVARIAN HYPERSTIMULATION SYNDROME (OHSS) IN A SPONTANEOUS SINGLETON PREGNANCY (Site not responding. Last check: 2007-10-18)
		These findings are in favor of ovarian origin of the elevated renin-like activity and angiotensin II immunoreactivity in ascitic fluid of severe OHSS and suggest a stimulatory role of hCG on the ovarian renin-angiotensin system during severe OHSS.
		Increase angiotensin II in ascites during severe ovarian hyperstimulation syndrome: Role of early pregnancy and ovarian gonadotropin stimulation.
		Ovarian origin of plasma and peritoneal fluid Prorenin in Early Pregnancy and in Patients with OHSS.
	www.ams.ac.ir /AIM/0031/amini0031.html (1056 words)

	Ovarian Hyperstimulation Syndrome
		A 30-year-old woman participating in ovarian induction therapy with menotropins (Humegon) and gonadotropins presented approximately two weeks after follicular retrieval and embryo transfer.
		Ovarian Hyperstimulation Syndrome (OHSS) is a potential complication of ovarian induction therapy.
		The pathophysiology of this syndrome is not clearly understood.
	brighamrad.harvard.edu /Cases/bwh/hcache/205/full.html (558 words)

	The role of endothelial cells in the pathogenesis of ovarian hyperstimulation syndrome -- Albert et al. 8 (5): 409 -- ...
		The role of endothelial cells in the pathogenesis of ovarian hyperstimulation syndrome -- Albert et al.
		The role of endothelial cells in the pathogenesis of ovarian hyperstimulation syndrome
		Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic complication
	molehr.oxfordjournals.org /cgi/content/abstract/8/5/409 (521 words)

	SART - Society for Assisted Reproductive Technology
		Ovarian hyperstimulation syndrome is associated with an exuberant ovarian response to HMG or FSH.
		It is estimated that severe hyperstimulation syndrome will occur in 0.4% to 2.0% of women taking these medications.
		Urine output may decrease as fluid is transferred into the abdominal cavity and kidney function may be impaired.
	www.sart.org /Guide_OvarianHyperstimulationSyndrome.html (655 words)

	Emergency Ultrasound
		This could represent a tubo-ovarian abscess, ectopic pregnancy, hemorrhagic ovarian cyst, or ovarian tumor.
		Ovarian hyperstimulation syndrome or polycystic ovary disease may have this appearance.
		This retroplacental hemorrhage is visualized in a patient during the third trimester of her pregnancy.
	www.smbs.buffalo.edu /emed/emed/ultrasound.html (285 words)

	Neurohormonal and Hemodynamic Changes in Severe Cases of the Ovarian Hyperstimulation Syndrome -- Balasch et al. 121 ...
		The pathogenesis of the ovarian hyperstimulation syndrome (OHS): a possible role for ovarian renin.
		Clinical, endocrinologic, and intraovarian prostaglandin F responses to H-1 receptor blockade in the ovarian hyperstimulation syndrome: studies in the rabbit model.
		Ovarian Origin of Plasma and Peritoneal Fluid Prorenin in Early Pregnancy and in Patients with Ovarian Hyperstimulation Syndrome
	www.annals.org /cgi/content/full/121/1/27 (3391 words)

	ivf-infertility.com \| Ovarian hyperstimulation syndrome (OHSS)
		Ovarian hyperstimulation syndrome may be classified as mild, moderate or severe by symptoms and signs.
		In some cases cysts appear in the ovaries (ovarian cysts) and fluid may collect in the abdominal cavity causing discomfort.
		Very rarely, in about 1-2% of cases the ovarian hyperstimulation is severe and the ovaries are very swollen.
	www.ivf-infertility.com /ivf/standard/complications/ovarian_stimulation/ohss.php (417 words)

	An Uncommon Etiology of Isolated Pleural Effusion : The Ovarian Hyperstimulation Syndrome -- Roden et al. 118 (1): 256 ...
		An Uncommon Etiology of Isolated Pleural Effusion : The Ovarian Hyperstimulation Syndrome -- Roden et al.
		Delvigne, A, Demoulin, A, Smitz, J, et al (1993) The ovarian hyperstimulation syndrome in in-vitro fertilization: a Belgian multicentric study; clinical and biological features.
		Man, A, Schwarz, Y, Greif, J (1997) Pleural effusion as a presenting symptom of ovarian hyperstimulation syndrome.
	www.chestjournal.org /cgi/content/full/118/1/256 (1519 words)

	Role of Vascular Endothelial Cell Growth Factor in Ovarian Hyperstimulation Syndrome -- Levin et al. 102 (11): 1978 -- ...
		Haning, R.V. Jr., C.W. Austin, I.H. Carlson, D.L. Kuzma, S.S. Shapiro, and W.J. Zweibel (1983) Plasma estradiol is superior to ultrasound and urinary estriol glucuronide as a predictor of ovarian hyperstimulation during induction of ovulation with menotropins.
		Moon (1984) Clinical, endocrinologic and intraovarian prostaglandin responses to H1 receptor blockade in the ovarian hyperstimulation syndrome: studies in the rabbit model.
		Paldi (1983) Serotonin and the ovarian hyperstimulation syndrome.
	www.jci.org /cgi/content/full/102/11/1978 (5756 words)

	Sydney IVF freeze-all cycle risk of hyperstimulation Ovarian hyperstimulation syndrome OHSS ovulation cancellation ...
		Ovarian hyperstimulation syndrome (OHSS) Cycle cancellation Multiple pregnancy risk Risks of medications No fertilisation; no embryo development; no implantation Stresses associated with infertility
		If you're at risk of hyperstimulation or if a problem is discovered in the uterus, your doctor might suggest that you have a freeze-all cycle rather than cancel the cycle completely.
		Since ovarian stimulation medications were first used decades ago, there has been concern that their use might increase the risk of cancer.
	www.sydneyivf.com /page.cfm?id=73 (1250 words)

	Pathophysiology of unilateral pleural effusions in the ovarian hyperstimulation syndrome -- Loret de Mola and Friedler ...
		Levin, M.F., Kaplan, B.R. and Hutton, L.C. (1995) Thoracic manifestations of ovarian hyperstimulation syndrome.
		(1997) Markedly elevated cytokines in pleural effusion during the ovarian hyperstimulation syndrome: transudate or ascites?.
		Wood, N., Edozien, L. and Lieberman, B. (1998) Symptomatic unilateral pleural effusion as a presentation of ovarian hyperstimulation syndrome.
	humrep.oxfordjournals.org /cgi/content/full/14/1/272 (991 words)

	Renal Blood Flow Alteration After Paracentesis in Women With Ovarian Hyperstimulation -- Maslovitz et al. 104 (2): 321 ...
		Human chorionic gonadotropin-induced ovarian hyperstimulation syndrome is associated with up-regulation of vascular endothelial growth factor.
		Hepatorenal syndrome: studies of the effect of vascular volume and intraperitoneal pressure on renal and hepatic function.
		Effects of repeated abdominal paracentesis on uterine and intraovarian haemodynamics and pregnancy outcome in severe ovarian hyperstimulation syndrome.
	www.greenjournal.org /cgi/content/full/104/2/321 (2903 words)

	SIRM: OVARIAN HYPERSTIMULATION SYNDROME (OHS): HOW TO IDENTIFY AND HANDLE IT (Site not responding. Last check: 2007-10-18)
		Either way, since this is a self limiting condition that rapidly disappears after the 7th to 8th week of pregnancy, when ovarian support of the pregnancy is taken over by the placenta, the problem will almost always be over by 60th day of pregnancy (day 1 being the day that gonadotropin shots were initiated).
		However, unless ovarian torsion (twisting of the ovary on its axis) occurs (and this is very rare indeed), ovarian enlargement is of little consequence.
		OHS patients with severe ascites are advised to raise the head of the bed raised slightly by placing a 4-6inch block under each of the head posts and to use a few extra pillows to minimize ascitic fluid from splinting the diaphragm and making breathing difficult.
	www.haveababy.com /infert/ohsid.asp (593 words)

	Ovarian hyperstimulation - Patient UK (Site not responding. Last check: 2007-10-18)
		Ovarian hyperstimulation - Patient UK PatientPlus articles are written for doctors and so the language can be technical.
		Ovarian hyperstimulation syndrome (OHSS) is a relatively common and potentially serious complication of in-vitro fertilisation.
		Risk Factors Most severe cases are often associated with either polycystic ovary syndrome or the use of GnRH analogues to control the maturation process.
	www.patient.co.uk /showdoc/40002310 (508 words)

	Women's Health: How is ovarian hyperstimulation syndrome (OHSS) treated? (Site not responding. Last check: 2007-10-18)
		High pregnancy rates and successful prevention of severe ovarian hyperstimulation syndrome by 'prolonged coasting' of very hyperstimulated patients: A multicentre study.
		A novel approach to the treatment of ascites associated with ovarian hyperstimulation syndrome.
		Decreased incidence of severe ovarian hyperstimulation syndrome in high risk in-vitro fertilization patients receiving intravenous albumin: A prospective study (1995)
	www.2womenshealth.com /10-17.htm (441 words)

	Embryo freezing for preventing ovarian hyperstimulation syndrome
		Ovarian hyperstimulation syndrome (OHSS) is a complication of using hormones to induce ovulation (stimulate the release of eggs) in IVF (in vitro fertilisation).
		Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic potentially life threatening condition resulting from an excessive ovarian stimulation.
		The hallmark of this condition, is a massive shift of fluid from the intra-vascular compartment to the third space resulting in profound intra-vascular depletion and hemoconcentration.
	www.cochrane.org /reviews/en/ab002806.html (739 words)

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